Hearing Loss in Students Using Personal Listening Devices

Over one in five young adults showed signs of hearing damage in their right ear, even though they had no noticeable hearing complaints. This finding comes from a new study of university students and their personal listening device habits. Researchers Abdul Moiz, Nouman Khan, and Ashmal Javed identified what is known as “hidden hearing loss”—cochlear damage that is not yet detectable on a conventional hearing test. Their work, published with the DOI 10.55735/pkp8bn19, provides direct evidence that the way students use earphones and headphones is causing subclinical harm.

How the Study Measured Hidden Hearing Loss

The research team at Shifa Tameer-e-Millat University recruited 323 students aged 18 to 25. Each participant completed a detailed questionnaire about their listening habits. The questions covered the type of device they used most often, how many hours a day they used it, how many days a week, and whether they had exposure to other sources of loud noise. The researchers also asked about the presence of tinnitus, a ringing or buzzing in the ears.

After the survey, each student underwent a pure tone audiometry test in a quiet room. This standard hearing test measured the softest sounds they could hear at frequencies of 500 Hz, 1 kHz, 2 kHz, and 4 kHz in each ear. The critical definition for this study was “hidden hearing loss.” The team classified any hearing threshold worse than 25 decibels Hearing Level (dB HL) as hidden hearing loss, but only if the participant did not report any overt hearing problems. This method allowed them to catch deficits that would normally be missed in a routine check-up.

Right Ears Show More Damage, Tinnitus Linked to Left Ears

The results revealed a clear and asymmetric pattern of auditory damage. The mean age of participants was 22 years, with a nearly even split between males (53.3%) and females (46.7%).

Hidden hearing loss was not equally distributed between ears. It was identified in 22.3% of right ears, nearly double the 12.7% rate found in left ears. Statistical analysis showed that exposure to loud noise outside of personal device use—such as at social gatherings or in traffic—had a significant association with this right-ear hidden hearing loss.

Meanwhile, 51 students, or 15.8% of the sample, reported experiencing tinnitus. This symptom showed a significant and specific association with hidden hearing loss in the left ear. This finding adds to a growing body of evidence connecting subclinical hearing damage to tinnitus, a condition that can significantly impact concentration and mental well-being, as explored in our article on Tinnitus and Speech-in-Noise Deficits.

Personal Listening Devices: A Silent Threat to Young Ears

The study did not find a direct statistical link between the type of personal listening device—earphones versus headphones—and hidden hearing loss in this analysis. However, the overall high prevalence of damage points to the cumulative risk of prolonged, high-volume use. The researchers propose that the right ear’s greater vulnerability may be related to how people typically use devices, such as holding a phone to the right ear or having asymmetric noise exposure in environments like driving.

This research directly supports the concerns raised in our earlier resource on Hearing Loss Risk From Personal Audio Devices. It moves the conversation from theoretical risk to measured, subclinical outcome. The damage is happening now, and it is measurable, even in a population that considers their hearing to be normal.

Practical Implications for Hearing Health

The conclusions from Moiz, Khan, and Javed are a call to action. They argue that waiting for a standard audiogram to show a problem is too late. By then, significant and irreversible cochlear damage has already occurred. Their work suggests three main paths forward.

First, universities and colleges should implement hearing conservation programs. These would educate students on safe listening practices, such as adhering to the 60/60 rule (listening at no more than 60% volume for no more than 60 minutes at a time) and using noise-cancelling headphones to reduce the need for high volume in noisy places.

Second, routine audiological screening for students should include tests designed to detect hidden hearing loss, not just standard thresholds. Early detection could prompt behavioral changes that prevent further damage.

Finally, this early-stage noise injury may be a factor in the development of other sound sensitivity conditions. While this study focused on tinnitus, the path from cochlear damage to neural changes in sound processing is a known area of inquiry for conditions like misophonia. Protecting the auditory system from excessive noise may have broader benefits for overall sensory health.

For young adults, the message is clear: the invisible damage from today’s listening habits will shape tomorrow’s hearing health. Proactive education and screening are essential tools to prevent a generation from facing premature hearing difficulties.